Average October Temperatures for Washington

Average temperatures for October at cities and other locations throughout Washington are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Olympic Peninsula & West Coast, San Juan Islands & Puget Sound, Cascade Mountains and Eastern Washington.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Olympic Peninsula & West Coast

Average October temperatures
High °F	Low °F	Place	High °C	Low °C
61	45	Aberdeen	16	7
61	42	Clearwater	16	6
60	42	Forks	16	6
59	44	Friday Harbor, San Juan Island	15	7
62	34	Grayland	17	1
60	42	Long Beach	15	6
56	45	Port Angeles	13	7

San Juan Islands, Puget Sound & South

Average daily temperatures in October
High °F	Low °F	Place	High °C	Low °C
61	46	Anacortes	16	8
59	43	Bellingham	15	6
61	45	Bremerton	16	7
61	43	Centralia	16	6
58	46	Everett	14	8
64	44	Longview	18	7
59	43	Mount Vernon	15	6
63	41	Oak Harbor, Whidbey Island	17	5
56	47	Olga, Orcas Island	14	8
60	41	Olympia	16	5
58	46	Port Townsend	15	8
61	47	Seattle	16	8
62	41	Shelton	16	5
61	47	Tacoma	16	8
62	41	Vancouver	17	5

Cascade Mountains

October temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
56	41	Baker Lake Dam	13	5
58	42	Baring	15	5
58	40	Darrington	14	5
60	35	Mt Adams Ranger Station	15	2
46	33	Mt Rainier Paradise Ranger Station	8	0
59	42	Mud Mountain Lake Dam	15	6
56	43	Ross Dam	13	6
49	38	Stampede Pass	10	3

Eastern Washington State

Average October temperatures
High °F	Low °F	Place	High °C	Low °C
56	35	Boundary Dam	13	1
62	39	Chelan	17	4
60	40	Coulee Dam	16	5
66	43	Kennewick	19	6
62	33	Leavenworth	17	1
63	37	Moses Lake	17	3
61	36	Pullman	16	2
58	38	Spokane	14	3
63	44	Walla Walla	17	7
60	46	Wenatchee	16	8
61	32	Winthrop	16	0
64	35	Yakima	18	2

Average Temperatures for Washington in October

Olympic Peninsula & West Coast

San Juan Islands, Puget Sound & South

Cascade Mountains

Eastern Washington State

Reference

More Washington Weather Information